22236640684 has 6 divisors (see below), whose sum is σ = 38914121204. Its totient is φ = 11118320340.

The previous prime is 22236640669. The next prime is 22236640739. The reversal of 22236640684 is 48604663222.

It is a self number, because there is not a number n which added to its sum of digits gives 22236640684.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2779580082 + ... + 2779580089.

Almost surely, 2^22236640684 is an apocalyptic number.

It is an amenable number.

22236640684 is a deficient number, since it is larger than the sum of its proper divisors (16677480520).

22236640684 is a wasteful number, since it uses less digits than its factorization.

22236640684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5559160175 (or 5559160173 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 43.

The spelling of 22236640684 in words is "twenty-two billion, two hundred thirty-six million, six hundred forty thousand, six hundred eighty-four".